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Thesium muasyae (Santalaceae), a new species from the limestone fynbos of the Overberg, South Africa

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Thesium muasyae (Santalaceae), a new species from the limestone fynbos of the Overberg, South Africa

by
Zhigila, Daniel A.; Muasya, A. Muthama

Publication date
Usage
Attribution 4.0 InternationalCreative Commons Licenseby
Topics
Endemic, Greater Cape Floristic Region, systematics, taxonomy, Thesiaceae
Publisher
Pensoft Publishers
Collection
biodiversity
Contributor
Pensoft Publishers
Language
English
Rights
https://biodiversitylibrary.org/permissions
Rights-holder
Copyright held by individual article author(s).
Volume
201
Item Size
15.1M
Abstract
Thesium muasyae, a new species of the family Santalaceae, is described and illustrated. This species has unique morphological and ecological characters, differentiating it from other closely related species of the genus, such as T. karooicum. These characters include plants forming compact shrubs to about 30 cm tall with glabrous surfaces; leaves recurved, to about 4 cm long, terete to triangular, apiculate; flowers placed in lax spikes or borne solitary; and style up to about 2.5 mm long. Ecologically, T. muasyae is endemic to the limestone fynbos in the Overberg, Bredasdorp District, South Africa. Molecular phylogenetic evidence places this species in Subgenus Frisea Section Barbata, as closest sister to T. hispidulum + T. karooicum. A preliminary conservation Red List assessment suggests that T. muasyae is Critically Endangered, based on its population size, area of occupancy and extent of occurrence.
Addeddate
2025-05-02 18:39:03
Bhl_virtual_titleid
210913
Bhl_virtual_volume
v.201 (2022)
Call number
10_3897_phytokeys_201_80774
Call-number
10_3897_phytokeys_201_80774
Foldoutcount
0
Genre
article
Identifier
thesiummuasyaes201zhig
Identifier-ark
ark:/13960/s2500tmjjjg
Identifier-bib
10_3897_phytokeys_201_80774
Identifier-doi
10.3897/phytokeys.201.80774


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